just want to check that the info above from 2012 is still current now. we are flying IAD-GRU-AEP (DC to Buenos Aires), have 3:30 hr in GRU. 1) no need to go thru passport control? just land in GRU and proceed to transit area? 2) bags should be checked all the way to AEP (at least UA and JJ used to interline) so no need to go get bags and recheck?
thanks for any info!